CHRISTmas by definition is a celebration of the birth of Christ and in Victorian times, most people respected this celebration by attending Church to give thanks, as well as following the somewhat dubious 'traditions' that go with it. There is no doubt that pagan and possibly other influences have affected the Christmas happening each year but for those who do believe it is a time of joy and giving... as well.... as a time to give thanks for the birth of Jesus.
I personally believe that God wants each one of us to have a good time throughout life and at the end of the day we all make choices. I made mine and am happy with it........ Whatever your belief. persuasion, understanding... have a great time over Christmas.
Best wishes, Mike.